Pipeline pipe end groove wall thickness measuring tool

Abstract

The utility model relates to a pipeline end groove wall thickness measuring tool, which belongs to the technical field of measuring tools and comprises a ruler body, an outer fixed measuring claw is arranged at the lower end of the ruler body, one end of the outer fixed measuring claw is aligned with one end of the ruler body, and the other end of the outer fixed measuring claw exceeds the other end of the ruler body. One side of the external fixed measuring claw, which exceeds the ruler body, is provided with an inclined part, the ruler body is connected with a vernier part in a sliding manner, one side of the vernier part is provided with an external vernier measuring claw, and the external vernier measuring claw is opposite to the inclined part. And the yield of products is greatly improved.

Description

Technical Field

[0001] The utility model relates to a pipeline pipe end groove wall thickness measuring tool, belonging to the technical field of measuring tools. Background Art

[0002] As a method of connecting pipelines, welding requires processing of the pipe ends before implementation. Figure 1 The shape shown in area A is the groove, but after welding, in order to ensure the overall performance of the pipe string or pipeline, Figure 2 The thickness S2 of the welded part shown in area B should reach the specified limit. At the same time, due to the need for welding, the groove width b and groove angle a must meet the specified requirements. Affected by the manufacturing accuracy of the circular tube, after the tube is manufactured, especially the tube end, there will often be a certain degree of ellipse and uneven wall thickness. In order to meet the requirements of b and a, an inner cone surface needs to be machined in the inner hole. After machining this inner cone surface, the remaining wall thickness dimension S1 at the end will directly affect the final welding. Figure 2 The size conformity of S2 in the middle B area requires that the remaining wall thickness size S1 be controlled when processing the groove. Currently, there is no suitable measuring tool to measure the size of S1, which leads to the situation that S2 often does not meet the requirements when welding the pipeline after processing the groove, resulting in a low yield rate. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a pipeline pipe end groove wall thickness measuring tool in view of the above shortcomings. After being applied to the actual production process, it has a very obvious effect. The welding compliance rate of the pipeline pipe after the groove is processed is improved, and the product yield rate is greatly improved.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a pipeline pipe end groove wall thickness measuring tool, including a ruler body, an external fixed measuring claw is provided at the lower end of the ruler body, one end of the external fixed measuring claw is aligned with one end of the ruler body, the other end of the external fixed measuring claw extends beyond the other end of the ruler body, and a side of the external fixed measuring claw extending beyond the ruler body has an inclined portion, a vernier portion is slidably connected to the ruler body, an external vernier measuring claw is provided on one side of the vernier portion, and the external vernier measuring claw is opposite to the inclined portion.

[0005] As a further improvement of the above technical solution:

[0006] The upper portion of the inclined portion has an arc-shaped surface inclined downward.

[0007] The arc-shaped surface is convex upward.

[0008] The included angle F between the highest end of the arc-shaped surface and the ruler body is greater than 90° and less than 180°.

[0009] An arc groove is arranged at the junction between the lower end of the ruler body and the external fixed measuring claw.

[0010] The contact surface between the external fixed measuring claw and the ruler body is a plane.

[0011] The external fixed measuring claw is fixedly connected to the ruler body by a plurality of first fastening screws.

[0012] The external fixed measuring claw and the ruler body are integrally formed.

[0013] The cursor part is provided with a second fastening screw.

[0014] The utility model adopts the above technical solution and has the following advantages:

[0015] 1. Through the measurement of the utility model, the occurrence of unqualified wall thickness S1 at the groove of the pipeline pipe end is greatly reduced, the welding compliance rate of the pipeline pipe after the groove is processed is improved, and the product yield rate is greatly improved;

[0016] 2. The utility model is simple to operate, does not require special training for inspectors, and is easy to use and promote in the inspection process.

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the pipeline pipe end groove in the background technology;

[0019] Figure 2 It is a schematic diagram of the structure of two pipeline pipes after welding in the background technology;

[0020] Figure 3 It is a structural schematic diagram of a pipeline pipe end groove wall thickness measuring tool in an embodiment of the utility model;

[0021] Figure 4 yes Figure 3 Right view of;

[0022] Figure 5 yes Figure 3 A partial enlarged view of the middle I part;

[0023] Figure 6 The utility model is a schematic structural diagram of a pipeline pipe end groove wall thickness measuring tool in use.

[0024] In the figure,

[0025] 1- ruler body, 2- external fixed measuring claw, 3- vernier part, 4- arc-shaped groove, 5- inclined part, 6- arc-shaped part, 7- first fastening screw, 8- external vernier measuring claw, 9- second fastening screw, 10- pipeline tube body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0029] like Figure 3-6 As shown, a pipeline pipe end groove wall thickness measuring tool comprises a ruler body 1, an external fixed measuring claw 2 is provided at the lower end of the ruler body 1, the external fixed measuring claw 2 is fixedly connected to the ruler body 1 by a plurality of first fastening screws 7, one end of the external fixed measuring claw 2 is aligned with one end of the ruler body 1, the other end of the external fixed measuring claw 2 exceeds the other end of the ruler body 1, the contact surface between the external fixed measuring claw 2 and the ruler body 1 is a plane, an arc groove 4 is provided at the junction between the lower end of the ruler body 1 and the external fixed measuring claw 2, the radius Ra of the arc groove 4 is less than half of the groove width b, the side of the external fixed measuring claw 2 that exceeds the ruler body 1 has an inclined portion 5, the upper part of the inclined portion 5 has an arc surface 6 inclined downward, the arc surface 6 bulges upward, and the angle F between the highest end of the arc surface 6 and the ruler body 1 is greater than 90° and less than 180°.

[0030] A vernier part 3 is slidably connected to the ruler body 1 , and a second fastening screw 9 is provided on the vernier part 3 , by which the vernier part 3 can be fixed. An outer vernier measuring claw 8 is provided on one side of the vernier part 3 , and the outer vernier measuring claw 8 is opposite to the inclined part 5 .

[0031] When in use, place one side of the groove of the pipeline pipe body 10 between the external fixed measuring claw 2 and the external vernier measuring claw 8, with the blunt edge of the groove close to the ruler body 1, the lower edge of the groove close to the inclined portion 5, and the external vernier measuring claw 8 pressing on the outer wall of the pipeline pipe body 10, thereby accurately measuring the wall thickness of the groove of the pipeline pipe end. Example 2

[0032] The difference from the first embodiment is that the external fixed measuring claw 2 and the ruler body 1 are integrally formed.

[0033] Through the measurement of the utility model, the occurrence of unqualified wall thickness S1 at the groove of the pipeline pipe end is greatly reduced, the welding compliance rate of the pipeline pipe after the groove is processed is improved, and the product yield rate is greatly improved.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline pipe end groove wall thickness measurement tool, characterized by: The ruler body (1) comprises an external fixed measuring claw (2) at the lower end of the ruler body (1), one end of the external fixed measuring claw (2) is aligned with one end of the ruler body (1), the other end of the external fixed measuring claw (2) protrudes from the other end of the ruler body (1), a side of the external fixed measuring claw (2) protruding from the ruler body (1) has an inclined portion (5), a vernier portion (3) is slidably connected to the ruler body (1), an external vernier measuring claw (8) is provided on one side of the vernier portion (3), and the external vernier measuring claw (8) is opposite to the inclined portion (5).

2. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: The upper portion of the inclined portion (5) has a downwardly inclined arc-shaped surface (6).

3. A pipeline pipe end groove wall thickness measuring tool according to claim 2, characterized in that: The arc-shaped surface (6) is convex upwards.

4. A pipeline pipe end groove wall thickness measuring tool according to claim 3, characterized in that: The included angle F between the highest end of the arc-shaped surface (6) and the ruler body (1) is greater than 90° and less than 180°.

5. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: An arc-shaped groove (4) is provided at the junction between the lower end of the ruler body (1) and the external fixed measuring claw (2).

6. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: The contact surface between the external fixed measuring claw (2) and the ruler body (1) is a plane.

7. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: The external fixed measuring claw (2) is fixedly connected to the ruler body (1) via a plurality of first fastening screws (7).

8. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: The external fixed measuring claw (2) and the ruler body (1) are integrally formed.

9. A pipeline pipe end groove wall thickness measuring tool according to claim 1, characterized in that: A second fastening screw (9) is provided on the cursor portion (3).

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